Unloading device



W. R. JONES. UNLOADYING DEVICE- APPLICATION FILED MAY I0,1920.

Patented 00a 4, 1921.

2 -SHEETSSHEET 2.

W. R; JONES.

UNLOADING DEVICE. H APPLICATION men MAYI0,192O.I I 1,392,419, Patented Oct. 4, 1921.

2 SHEETS-SHEET l- 'citizen of the United I Marlin, in the county of Falls and State of U NITEDfSTATEFS- PfAiENT-j OFFICE.

L =..wm;1m R. Jonas, MA TEXAS- UNLOADING DEvicE.

To all'whom it may come r1: I

. Be it known that I, WILLIAM R. JONES, a States, residing at Texas, have invented certain new and useful Improvements in Unloading Devices, of which thefollowing is a specification.

This invention relates to improvements in; devices for unloading material from trucks, and has for its principal object to provide a device for unloading and stacking piping more particularly in oil fields where the sav-.

ing of time and labor is very essential.

The invention will be more fully under stood from the following description, taken in connection with the accompanying drawings, forming part hereof, in which-,-

side elevational view of a.

Figure 1 is a truck embodying my invention. v

Fig. 2 is a top or plan view.

Fig. 3' is an end elevational view, the

truck wheels not. shown.

Fig. 4 is a cross sect onal view ofone end of the device.

Figs. 5, (Sand respectively, taken on 7-7 of Fig. 2.

Figs. ratchet wheel, lever arm and pawl, respectively, and

Fig. 10 is a detail view of the drum,

7 are" sectional detail views, lines 5-5, 6-6 and V ratchet wheel, etc., taken on line 10-10, Fig. 8.

I is being Referring more particularly to the draws ings, 1 denotes the platform or bed of a truck supported upon the wheels 2-2. At each end of the truck'bed 1 is aframe comprising the two upright members 3-3 and the horizontal members 4-4,.the frame being in one piece and bolted to the truckbed 1 by bolts 5-5, Fig. 4, passing through the base 7; A shaft'8 traverses the upper ends of the uprights 3-3 and 6-6 resting in suitable bearings and between the uprights and fixed upon the shaft 8 is a drum 9, illus trated in Fig. '10, upon which a chain 11'or other flexible element, may be wound. In Fig.9 is shown in detail a ratchet 12 and pawl 13, adapted to, prevent rotation of the shaft in one direction when the shaft 8 turned by the lever arm 14 in connection with the ratchet finger 15 which engages the teeth'of a ratchet 16. I

Specification of Letters Patent.

position for mediate arms are locked in position by notch- 20 into which a pin 21 is received.

8 and 9 are detail views of'the jects lateral arms 18-18. These arms have a pin Patented Oct. 4, 1921-.

Applicatibnfiled May'10, 1920. Serial No. 880,037.

17 ,the pin having free movement in a slot 17 in members 4-4. The opposite ends of thelateral arms 18-18 are pivoted to an intermediate arm 19, see Fig. 4. The inner end of the intermediate arm 19 is connected to the chain 11, which, when the lever arms 14-14 are operated, will wind'the chain upon the drums 9-9 and raise the intermediate arm 19 and consequently the lateral arms 18-18 to lift the piping 1n the see Fig. 3, the lateral and intertal position,

the

As will be noted in Fig. 4, the intermediate v arm 19 is bent downward in a line diouter end a roller 22 adapted to abut and load upon the truck. As the intermediate arm 19 is lifted upward by rotationof'the shaft" 8 the post 23 falls outwardin the po-' sition shown at Fig. 4 and the piping is allowed to roll off the truck. 7

Having thus of my invention, what I claim as new and desire to secure by Letters Patent, is-

described the nature and obunloading. When in a horizon-,

V verging opposite the pin 21, and has on its 1. In a device of the character described,

a wheeled support, a frame mounted thereon, said frame comprising upright and hori-.

zontal arms, a shaft journaled in the upright arms, a lever arm and ratchet wheel at each end and intermediate the frame, a pair of lateral arms pivoted to one side of the frame at each end thereof, a second arm intermediate the lateral arms and pivoted to the inner ends of the lateral arms and means for raising and lowering the arms and locking same in a horizontal position. 2. In a device of the character described, a wheeled support, a frame mounted thereon comprising upright and horizontal arms, lateral and intermediate arms pivoted to the frame, a shaft journaled in the upright arms, drums,lever arms, and ratchets upon the shaft, pivoted posts at the/side of and supported by the horizontal arms, said intennediate arms bent downward, a roller on I the end and adapted to bear against said posts toretain them in an upright position.

3. In a device of the character described, a Wheeled support, a frame mounted there- 5 on, a shaft in the frame, oted arms in the frame, a on the shaft and a flexibl a plurality ofpivplurality of drums e member connectname to this. specification.

. 10 In testimony whereof I have signed my r WILLIAM'R. JONES. 

